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Sanitary sewer overflow (SSO) reported — Maryland Environmental Service, May 28, 2026

Ended (as reported) · Maryland Environmental Service

Source: Maryland Environmental Service via MDE Reported Sewer Overflows (New for 2023), Maryland Open Data Portal (Socrata stgj-u72u), record md0023957-20260528T1030-18901-roxbury-rd, updated by the source Nov 2, 2026, 10:55 AM EST, retrieved 2026-11-03 02:31 UTC · Read the original notice

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1. Reported wastewater outlet

Operator named in the record: Maryland Environmental Service (federal wastewater discharge permit, NPDES, MD0023957). Outlet: “18901 Roxbury Road”. Location: 39.55580, -77.71000; location source: given in the source record.

Outfall: a pipe or outlet where wastewater enters a water body.

2. Waters named in the notice

The notice names: “storm drain channel that empties to an unnamed tributary of Antietam Creek”. DirtyWaterWatch links this report to Antietam Creek, MD. Match basis: the water named in the report.

3. Estimated downstream stretch

No downstream estimate is available for this report.

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When it happened and when it was reported

Event and notice times use Eastern Time (EST or EDT). Retrieval times use Coordinated Universal Time (UTC).

Started

May 28, 2026, 10:30 AM EDT

Ended

May 28, 2026, 11:40 AM EDT

Detail provided by the source

Times known to the minute

Reported to the source

not given

Published

not given

Source last updated

Nov 2, 2026, 10:55 AM EST

Last retrieved by DirtyWaterWatch

2026-11-03 02:31 UTC

What and how much

Type

Sanitary sewer overflow (SSO): sewage spills from a sewer meant to carry sewage separately from rainwater.

Status in the record

Ended (as reported)

Material

not stated

Volume

750 gallons (not stated whether estimated or measured)

Volume as reported

“750 gallons”

Advice from Maryland Environmental Service

This report includes no advice. Check current local health notices.

Advice period

This report does not state a period. See the rule DirtyWaterWatch applies and its source.

Basis

not stated

Source and versions

Source

MDE Reported Sewer Overflows (New for 2023), Maryland Open Data Portal (Socrata stgj-u72u)

Source record number

md0023957-20260528T1030-18901-roxbury-rd

Original notice

Read the original notice

Earlier version

None: this is the first record

Later versions

None

{
  "row": {
    "overflow_type": "Unauthorized Discharge",
    "facility_collection_system": "Maryland Correctional Institution (MCI) WWTP & Collection System",
    "npdes_no": "MD0023957",
    "start_date": "05/28/2026",
    "start_time": "10:30:00",
    "duration_day": "0",
    "duration_hour": "1",
    "duration_minute": "10",
    "overflow_address": "18901 Roxbury Road",
    "zip": "21740",
    "owner_name": "Maryland Environmental Service",
    "discharge_volume": "750",
    "overflow_cause": "Failure of the fine screening system",
    "receiving_water": "storm drain channel that empties to an unnamed tributary of Antietam Creek",
    "county": "Washington",
    "penalty_id": "",
    "overflow_latitude": "39.5558",
    "overflow_longitude": "-77.7100",
    "id": "342"
  },
  "_source_type": "Unauthorized Discharge",
  "_ended_at_basis": "start + duration_day/hour/minute",
  "_coords": "as given",
  "_water": {
    "name_notes": [
      "'antietam creek' named as the water a tributary/branch joins: not used"
    ],
    "why_none": "no Maryland water record matched the name"
  },
  "_discharger_basis": "owner name",
  "_first_seen_at": "2026-11-03T02:28:49Z"
}